PALIN - The Next Palindrome

A positive integer is called a palindrome if its representation in the decimal system is the same when read from left to right and from right to left. For a given positive integer K of not more than 1000000 digits, write the value of the smallest palindrome larger than K to output. Numbers are always displayed without leading zeros.


The first line contains integer t, the number of test cases. Integers K are given in the next t lines.


For each K, output the smallest palindrome larger than K.




Warning: large Input/Output data, be careful with certain languages

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Martijn Muijsers: 2014-01-15 15:17:31

Great problem, but some wrong answers appear to be accepted? :P

Shashank Gupta: 2014-01-15 15:17:31

Good problem. Just be very careful with what functions/operations you use in your language. Even in slower languages, this problem is easy to do with the high time limit.

Sachin Sai Krishna M: 2014-01-15 15:17:31

for 9 the ans should be 11 but if even 9 gets printed u can get AC:) pls check that one

Gaurav Mishra: 2014-01-15 15:17:31

To much hard coding :(

ISHANI: 2014-01-15 15:17:31

GREEN LINE after hard hard coding

Abhash Singh: 2014-01-15 15:17:31

3.5 hrs straight into this one!
AC in first attempt!
no points!what is this! :(

Bernardo de Freitas Zamperetti: 2014-01-15 15:17:31

make sure that your program can accept numbers with at least 1000000 *DIGITS*

Last edit: 2013-05-03 15:22:37
Guo Zhiming: 2014-01-15 15:17:31

The version of Clojure is tooooo old. can anybody update it to 1.3 or 1.5?

Shrinidhi Sondur: 2014-01-15 15:17:31

This one was good. Real good. If you stick to it for some time you'll crack it.

lukan thorare: 2014-01-15 15:17:31******
plz help!

--ans--> Please use the forum, it is made for those questions.

Last edit: 2013-03-16 14:03:08

Added by:adrian
Time limit:2s-9s
Source limit:50000B
Memory limit:1536MB
Cluster: Cube (Intel G860)
Languages:All except: NODEJS PERL6

Problem's scores 1 vote

Concept difficulty
Concept difficulty 37%
Implementation difficulty
Implementation difficulty 50%
458 16